The primer I'm using on my plane is two part epoxy stuff called Ultimate 2K, by Mar-Hyde. Everybody I've talked to, from the folks at the paint shop to the instructor at the tech school say that you can pour oil and water all over this stuff, and when it comes time to paint it a year later all you need to do is a thorough degreasing, lightly sand with 600, and shoot a coat of paint on it. That's what I plan to do, which is why mine is going to fly in primer. This allows me to make changes, or even knock down some runway lights, and not have to cry over my $3000 paint job. Besides that, I'm going to do a little remodeling at my house, and one thing that will fall out of it is a paint booth, so waiting a year has its advantages.
Older primers were indeed worthless for any amount of time, but the new urethanes are far superior. Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford
